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System board
Description Spare part number
System board for use in models without Windows 8 (includes thermal material) 696794-001
System board for use in models with Windows 8 Standard (includes thermal material) 696794-501
System board for use in models with Windows 8 Professional (includes thermal material) 696794-601
System board for use in models with NetClone (includes thermal material) 727722-001
1. Prepare the computer for disassembly (Preparation for disassembly on page 85).
2. Remove the access panel (Access panel on page 86).
3. When replacing the system board, make sure the following components are removed from the
defective system board and installed on the replacement system board:
Memory modules (
Memory on page 91)
Expansion cards (
Expansion card on page 94)
Fan sink (
Fan sink on page 126)
Processor (
Processor on page 127)
4. Remove the fan duct from the chassis (Fan duct on page 115).
5. Rotate the drive cage to its upright position.
6. Disconnect all data and power cables from the system board.
7. Remove the eight Torx screws (1) that secure the system board to the chassis.
System board
129